Wiper holder for perforator-card machines



l- 28, 1952 c. H. STUIVENBERG 2,615,627

WIPER-HOLDER FOR PERFQRATOR-CARD MACHINES Filed Aug. 6, 1947 4 Sheets-Sheet 2 CO INFl/S HFNDRKDJ S 70/?! B58 6 By 0 7% :ruAu-z Oct. 28, 1952 c. H. STUIVENBERG 2,615,627

WIPER-HOLDER FOR PERFORATOR-CARD MACHINES Filed Aug. 6, 1947 4 Sheets-Sheet 3 INVENTOR CORNELIS HENDRI UJ 6 TlJ/VEIVHER ATTORNEB Oct. 28, 1952 C. H. STUIVENBERG WIPER-HOLDER FOR PERFORATOR-CARD MACHINES Filed Aug. 6. 1947 Hormel lo fidzn surface- 4 Sheets-Sheet 4 Plans 0/ rjb/ any/e5 7o INVENTO R COQNEUS H. STUNKNBERQ RrroRNEYS Patented Oct. 28, 1952 OFFICE WIPER HOLDER FOR PERFORATOR-CARD MACHINES Cornelis Hendricus Stuivenberg, Haarlern, Netherlands vApplication August 6, 1947,-Serial No. 766,769 I In the Netherlands August 27, 1945 Section 1, Public Law 690, August 8, 1946 Patent expires August 27, 1965 i The present invention relates to perforatorcard machines with electrical feeler or sensing arrangement in which thefeelers or wipers conslot of very fine metal wires similar to the hairs of a brush. In suchmachines, it is necessary frequently to check the feelers or sensing means and, to this extent, the feelers or sensing means,

which are alsocalled wipers, must be removed by dismounting the holder device for the feelers. In machines of the type involved, as heretofore known, the feeler holder can only' be shifted within straight guides, while a locking device is provided for. locking the feeler holder in its operative position. One of the drawbacks of the devices under consideration as heretofore known, consists in, that, when the feelers are brought into their working position after a check-up,

they are moved in the direction of their longitudinal axes. As a result thereof, the fine wires hing can be, avoided if the wipersare carefully advanced "into their working position. However, due to the fact that the machine must be operatedwhile the insertion of the feelers or wipe'rsis, being effected, it was heretofore neces-. sary to" employ two persons, namely, one for operating the machine, and a second one for efiectihgthe insertion of the wipers or .feelers. It is the primary object of the present inven-- tion to overcome this drawback, so asto allow the insertion ofthe feelers or wipers while the machine is at a standstill, thereby making the second person referred to above,:superfluous.

It is another object of this invention to providea wiper holder for'perforator-card machines which is simplein construction and will automatically provide different pathsfor the wiper holder-during its insertion into and'removal from the respective card machines.v V

' These and other objects and advantages of the invention will appearmore clearly from the renewing speciflcationin connection with the accompanying drawings, in which:

Figure 1 illustrates, an; embodiment of the wiper; holder according ,to the present inven- .tion as seen in the moving direction ofthe cards, the-wipers being in their tion.

operative posi- Claims. (Cl. 23561.11)

Figure 2 shows the left hand guide for the wiper holder seen from the center portion of the wiper holder.

Figure 3 illustrates the view of the wiper holder seen from the left hand side of Figural. V

Figure 3A is a perspective view of the part illustrated in Figure 3.

Figure 4 is a perspective view of the guides shown in Figures 2 and 3.

Figure 4A illustrates on an enlarged scale a detail of Figure 4.

Figures 5 to, 8 show various positions occurringwhile the wiper-holder is being inserted.

Figure 9 represents a section through'th'e' wiper-holder and the contact devices for supply of current to the wipers.

Figure l0'is a diagrammatic showing of'the principles governing the construction of the guiding means in connection with the present invention.

General arrangement As stated above, it was necessary withwiperholders for perforator-card machines as heretofore known, to have one operator operate the machine while a second operator inserted the wiper-holder. In order to overcome the drawback of requiring two operators for this opera! tion, and in order to simplify the entire inserting operation of the wiper-holders, the holding means for the metal wire wipers are, according to the present invention, supported in such a manner that different paths of movement of the holding means and-thereby the wipers are pro-. vided for the insertion of the holding means into and the removal of the holding means from the supporting means for the holding means,

In orderlnore clearly to bring out the idea underlying the present invention, reference may be had to Figure 10. In this figure, the wire wiperis designated by the reference numeralfl' and'is shown in itsworking position. When this wiper is moved from the position la into the working position, no sticking or stabbing will occur, for the following reason: The path .of: the movement of the lower end of the wiper is designated s and may be split up into the component'a and the component b. The component a represents a retracting movement ofthe wiper.

It is clear that, if the component a would reas being of negative values 'The question-in connection with the present problemis mow,"

how the movement has to be in order to cause the component a always to have the said negative value. It will be clear that such desired result can be obtained only when the active or lower end of the wiper moves along a path between the feeling surface and the plane at right angle to the axis of the wiper, said plane and feeling surface being clearly indicated in Figure 10. In other words, the path of movement must be within the angle a. It is, however, not necessary that this path of movement be straight. If the movement of the wiper-holder should be along a curved path, or should be a rotative movement, the location of the pivots about which such rotative movement takes place, must be within the angle 5. This is due to the fact that the radius of rotation must be at right angles with regard to the required path of movement of the wiper.

Structural arrangement Referring now to the specific structure shown in the drawings, by way of example, the reference numeral I represents a wiper-holder which has a left hand side plate 2 in right hand side plate 2a. Each side plate has been equipped with a relatively short cylindrical guiding-cam 3.

The side plate 2 furthermore comprises a guiding-cam 5 of a rectangular section, which cam has a greater length than cam 3. The sideplates 2 and 2a in image are equal to each other. Therefore the same reference-figures have been chosen as reference-marks for the right hand sideplate, only the affix a" being added. For the sake of simplicity, only the left hand side of the wiper-holder will be discussed below. Attached to the side 6 of the machine are guiding parts I and 8, which together define a guiding track 9 for the cam 3 of the sideplate 2. A pawl ID for locking the wiper-holder in its operating position is rotatable around a stud II and is acted upon by a spring I'2. When the pawl I is in its operative position, the lower part thereof extends in front of the cam 3 (see Fig. 2) (in the other direction) to such an extent that cam 3 is firmly retained in the lower part of the guiding track 9. The upper part of the guiding track 9 is closed by a, guiding device I3 fixed to a spring I4 that is so applied to the side 6, that the guiding device I3 can be pushed back in sideward direction (Fig. 1) against the thrust of spring I4. It stands to reason that the side 6 of the machine is provided with a corresponding notch through which the guiding device I3 can pass.

As regards its form, the guiding device I3 can best be seen in Fig. 4. It has a bevel surface I and a recess I6, which has the same dimensions as the cam 5 of the sideplate 2 and ends in a beveled surface I'I. With reference to the beveled surface I5 it may be observed that its dimensions also correspond to those of the cam 5 of the sideplate 2 of the wiper-holder I.

While the guiding track 9 is destined for the straight guiding ofthe .cam 3 of the sideplate 2, the guiding device I3 serves to compel the cam 5 of the sideplate 2 to move in different directions when the wiper-holder is removed and re-inserted respectively.

When the wiper-holder is removed, it must be possible to move the cam 5 as. well as the cam 3 in a straight direction, while during the insertion of the wiper-holder I the cam 5 knocks against the upper plane of the guiding device 4 I3, thus preventing a further straight movement of the cam 5 (see Fig. 5).

In order to be able to bring the wiper-holder I into its operating position, the wiper-holder I must be revolved around the cams 3 and 3a in such a way that the cams 5 come sidelong of the guiding device I3 (see Fig. 6), in which posiiton the wiper-holder can be moved in the direction of the contact-roll, till it arrives in the position shown in Fig. 7. In this position of the wiper-holder I the pawl l0 drops behind the cam 3 which latter has reached the lower part part of the guiding track 9, and thus prevents the wiper-holder I from being lifted out once more. Now it is only possible for the wiperholder to be revolved around the cams 3 and 311 that have been locked by the pawls I0 and Illa.

In the position of the wiper-holder according to Fig. 7 the wipers are not yet resting against the contact roll. If, however, now the wiper-holder is revolved clockwise in the position represented in Fig. 8, then the wipers with the required tension are pressed against the contact roll. The cam 5 of the sideplate 2 cooperates with the beveled surface I5 of the guiding device I3 and against the thrust of spring I4 pushes this device back, whereupon the guiding device I3 under the influence of the spring I4 can again shoot forward when the cam 5 comes within the reach of the notch I6 of the guiding device I3. Now the cam 3 is in the notch I6 of the guiding device I3 and is locked by this device in the position according to Fig. 8.

If the wiper-holder I has to be removed from the machine, it is suflicient to release the pawls I0 and Illa and thus to release the cams 3 and 3a. Due to the tension of the wiper wires the whole wiper-holder I is pushed back over a small distance. During this movement, the cam 5 of the sideplateZ co-operates with the beveled surface II of the guiding device I3, and the guiding device I3 is turned back over a short distance against the thrust of the spring I4. If now the wiper-holder I is seized and pulled back further, the guiding device I3 is pushed aside further by the cam 5; after having passed the cam 5, the device I3 shoots again into its locking position. So the wiper-holder I cannot be brought again into its operating position by simply pushing it in, since the guiding device I3 prevents the straight pushing in, as has been explained above. Since the cam 3 is shorter than the cam 5, it is not within the reach of the guiding device I3, so that, after the cam 5 has pushed the guiding device I3 aside in the manner described before, the wiper holder I can be pulled out without difficulties.

In another embodiment of the invention, the rotative movement of the wiper-holder can be utilized to effect the conducting connections between the wipers of the holder and the supply conductors. According to the invention the wiper-holder is provided with contacts that during the insertion of the wiper-holder co-operate with springing contact-devices in the machine in such a way that they effect the connection of the separate wipers with the additional supply conductors. The springing contacting devices are, preferably by guiding elements, prevented from sideward movements when the wiperholder is being inserted or removed. This'may be realized by equipping the wiper-holder con-. tacts with a cut-out part, e. g. a groove, for

the 'dropping in oI-the corresponding springing contacting-device.

Fig. 9 shows contacts that have been arranged in three rows above each other and in a leaping manner towards each other; each of these contacts "being connected conductively to a wiper. Each of the contacts 18 is co-operating with a swinging contact tongue I! that has been arranged stationarily in the machine, to which contact tongue the supply conductor to the wipers 1148 been connected. .mwhen thewiper-holder l is being inserted in .1% manner described above, the contacts 18 by the rotative movement of the wiper-holder l are pressed against the springing contact tongues I9 and thus the connections for the wipers are enacted.

When the wipereholder l is bein removed, the contacts l8 shift relative to the contact tongues ,owing to which the proper contact planes of both parts on account of the friction remain very clean and any dirt as e. g. dust is removed again,

The invention is in no respect restricted to the described embodiment. The essential part of the invention is only that the wiper-holder when being inserted or removed is moved in difterentroutes in such a manner that the wiper wires only at the end of the insertion movement are subjected to a supplementary movement, in particular a turning movement of the wiperholder. I I "or guiding the wiper-holder when it is being inserted or removed, also guiding devices other than those described before, can be used. It is in particular possible to use guiding tracks which have been equipped with guiding devices that 'fimction' as change-over tongues to eiTect the changes of direction; dependent on the movement of the wiper-holder these change-over tongues always take the position appropriate to the opposite movement of the wiper-holder.

What I'claim is: '1. For use in connection with feeler means comprising a metal wire wiper for analyzing recordcards, an'arrangement comprising in combination, holding means for holding said wiper, control means connected to spaced portions of said holding means, each of said control means being provided with a guidingmember and with earn-means spaced from said guiding member, supporting means arranged adjacent each of said controlme'ans for supporting said control means, said supporting means comprising means forming a-straight path guiding track for said guiding; member, and yieldable guiding means associated with said supporting means and arranged to cooperate with said control means for guiding said cam means respectively along a straight and a curved path during insertion of said holding means into and the removal of said holding means from said supporting means.

2. For use in connection with ieeler means comprising a metal wire wiper for analyzing 'record cards, an arrangement comprising in combination, holding means for holding said wipers, control means connected to spaced portions of said holding means, each of said control means being provided with a first cam member and a second cam member spaced from said first cam member, supporting means arranged adjacent each of said control means for supporting the same, first guiding means rigidly connected to said supporting means for guiding said first cam member along a straight path, second guiding means yieldingly connected to said supporting means for guiding said second cam member along a curved path during placement of said holding means into operative position, and means operable selectively to lock and unlock said first cam member for respectively allowing rotative movement only of said cam member or for allowing withdrawal of said holding means from said supporting means. H

3. For use in connectionwith feeler means comprising a metal wire wiper foranalyzing record cards, an arrangement comprising in combination, holding means for holding said wipers, control means connected to spaced portions of said holding means, each of said control means being provided with a first cam member and a second cam member spaced from said first cam member, supporting means arranged adiacent each of said control means for supporting the same, first guiding means rigidly connected to said supporting means for guiding said first cam member along a straight path during placement of saidholding means into operative position and during removal of said holding means from said operative position, second guiding means having a, plurality of separate guiding surfaces for respectively guiding said holding means along a predetermined first path during removal of said holding means from said Op rative position and for guiding said holding means along a second predetermined path during insertion of said holding means into operative position, yielding means connected to said supporting means and continuouslyurging said second guiding means into a predetermined position to cause the latter to prevent insertion of said holding means along the path of removal of said holding means, and locking means associated with said supporting means for auto matically locking said first cam member so as to allow rotative movement of said control means only, said last-mentioned means being operable manually for making the same ineffective to thereby-allow removal of said holding means.

4. For use in connection with feeler means comprising a metal Wire Wiper for analyzing record cards, an arrangement comprising in combination, holding 'rneans for holding said Wipers, control means connected to spaced per-,- tions of said holding means, each of said control means being provided with a first cam memher and a second cam member spaced from said firstcam,memher, supporting means arranged adjacent each of said control means for supporting the same, first guiding means rigidly. connected to said supporting means for guiding said first cam member along a straight path, second guiding means yieldingly connected to said supporting means for guiding said second cam member along a curved path during placement of said holding means into operative position, and contact means associated with said control means and operable in response to the placement of the wiper holder into its operative position for establishing electrical connection of said wipers with a current supply line.

5. For use in connection with feeler means comprising a metal wire wiper for analyzing record cards, an arrangement comprising in combination, holding means for holding said wipers, control means connected to spaced portions of said holding means, each of said control means being provided with a first cam member and a second cam member spaced from said first cam member, supporting means arranged ad- 'jacent each of said control means for supporting the same, first guiding means rigidly connected to said supporting means for guiding said first cam member along a straight path, second guiding means yieldingly connected to said supporting means for guidin said second cam member along a curved path during placement of said holding means into operative position, yielding contactors associated with said holding means, contact elements associated with said' control means for automatically contacting said contactors in response to the movement of said holding means into operative position, and means for preventing sideward movements of said yielding contactors during movement of said holding means into operative position.

6. A device for analyzing record cards comprising in combination, feeler means operable to engage and analyze said cards when moved thereover, said feeler means comprising a metal wire wiper for contacting the cards to be analyzed, a wiper holder for supporting said feeler means, pivot means for pivotally supporting said feeler means, a supporting device for movably supporting said wiper holder and guiding the same along a first path during movement of said wiper holder into operative position while guiding said wiper holder along a second path during removal of said wiper holder from operative position, the path of movement of the free end of said wiper when said wiper holder is being moved into working position lying within an acute angle defined between the plane of the card to be analyzed and the plane passing through the analyzing point of said wiper at the right angle to the axis of said wiper, and the path of movement of the free end of said wiper during removal of said wiper holder during its operative position being located within the angle supplemental to said acute angle, i. e., the obtuse angle between the said planes.

7. A device for analyzing record cards comprising in combination, feeler means operable to engage and analyze said cards when moved thereover, said feeler means comprising a metal wire wiper for contacting the cards to be analyzed, a wiper holder for supporting said feeler means, pivot means associated with said wiper holder, guiding means for guiding said pivot means, and means associated with said guiding means and operable to lock said pivot means so as to allow only rotative movement of said wiper holder, said last-mentioned means being operable in response to the movement of said pivot means into a position defined by a plane at a right angle to the longitudinal axis of said pivot means and located between a line passing through the analyzing point of said feeler means and at right angles to the analyzing plane and the axis of said feeler means.

8. A device for analyzing record cards comprising in combination, feeler means operable to engage and analyze said cards when moved thereover, said feeler means comprising a metal wire wiper for contacting the cards to be analyzed, a wiper holder for supporting said feeler means, pivot means associated with said wiper holder, guiding means stationarily mounted and defining aslot for guiding said pivot means, and cam means spaced from said pivot means and connected to said wiper holder, additional guiding means associated with said first guiding means in cO-operation with said cam means and arranged during insertion of said wi er holder into operative position to force said feeler means into Working position prior to enabling rotative movement of said wiper holder about the axis of said pivot means, said additional guiding means being arranged to allow removal of said pivot means from said slot when removing said feeler means from its working position.

9. A device for analyzing record cards comprising in combination, feeler means operable to engage and analyze said cards when moved thereover, said feeler means comprising a metal wire Wiper for contacting the cards to be analyzed, a wiper holder for supporting said feeler means, pivot means associated with said wiper holder, uiding means stationarily mounted and defining a slot for guiding said pivot means, and latching means associated with said first-mentioned guiding means for locking said pivot means in that position in which only rotative movement of said wiper holder about the axis of said pivot means is possible.

10. For use in connection with analyzing apparatus for record cards, sensing means comprising a metal wire wiper, an arrangement comprising in combination, holding means for holding said Wiper, guide means and cam means on said holding means, and supporting means detachably supporting and locating the said holding means by engagement with said guide means and cam means, the said supporting means including a guide track to receive said guide means and also including guiding means having two guide surfaces, said guide surfaces being adapted for cooperation with the said cam means associated with said holding means each in a diflerent direction of movement of the said holding means to thereby force said holding means during insertion thereof into said-supporting means to move along a path different from the path of removal of said holding means from said supporting means.

CORNELIS I-IENDRICUS STUIVENBERG.

No references cited. 

